Pooneh Nezamabadi

Fivetran + DBT + Snowflake Data Pipeline- Berlin (9.2025-present)

• Built a modern ELT pipeline using Fivetran for ingestion, Snowflake for storage, and DBT for transformations and data modeling.
• Automated ingestion from multiple APIs and SaaS sources into Snowflake with Fivetran.
• Implemented modular DBT models, testing, and documentation to ensure data quality and reliability.
• Enabled analysts to query clean, production-ready datasets with reduced transformation time.
• Enhanced team collaboration by providing clear communication of complex findings through visualizations and reports.
• Collaborated with cross-functional teams to identify opportunities for process improvement and increased efficiency.
• Large-Scale Database Migration- Berlin (7.2025-8.2025)
• Migrated 500M+ records from Microsoft SQL Server to PostgreSQL.
• Built a Python-based ETL pipeline (pyodbc, psycopg2, pandas) with batch processing and chunked loading to handle memory constraints.
• Designed schema mapping, applied indexing, and ensured transaction-safe inserts to maintain data integrity.
• Reduced manual migration effort by 90% and prepared the system for faster analytics.
• NYC Taxi Congestion & Weather Impact Analysis- Berlin (3.2025-4.2025)
• Processed millions of NYC Yellow Taxi records and weather data to analyze the impact of congestion pricing.
• Designed an interactive Streamlit dashboard with real-time data exploration, using Snowflake as the backend.
• Applied SQL transformations and Python analytics for demand, pricing, and policy insights.

• Self-motivated, with a strong sense of personal responsibility.
• Excellent communication skills, both verbal and written.
• Proven ability to learn quickly and adapt to new situations.
• Skilled at working independently and collaboratively in a team environment.

• Managed and maintained internal databases (engineers, projects, financial data).
• Built automated reporting workflows in Excel and SQL, supporting technical and financial teams.
• Supported data migration and improved system accuracy across multiple departments.

• Developed strong partnerships with other businesses to allow for collaboration and more significant opportunities for growth.
• Established a successful business by identifying market needs and developing innovative solutions.
• Grew a business from 5 to 150+ students using data-driven strategies.
• Collected and analyzed feedback to improve retention and customer experience.